Muslim pilgrims performing the Hajj pilgrimage in Mecca faced extreme heat and hazardous conditions during the 2024 season [1, 2].
The severity of the heat wave created a public health crisis, leading to widespread heat-related illnesses and a high number of fatalities among those gathering at the Grand Mosque [2, 3].
Reports on the total number of deaths vary. One report indicates that over 1,300 pilgrims died during the 2024 Hajj season [1]. Another report states the death toll was upwards of 550 [2].
Temperature readings in Mecca also differed across reports. Some sources said that temperatures reached 47°C [4], while other reports indicated that heat soared to over 50°C in some areas [2]. The extreme conditions made it difficult for pilgrims to complete their religious obligations safely.
One unnamed pilgrim said, "I had planned to perform all prayers inside the Grand Mosque, but I was unable to perform the prayers that coincide with when the sun is up" [1].
The heat wave primarily affected those in the vicinity of the Grand Mosque, also known as Masjid al-Harām [1, 5]. The combination of dense crowds and intense solar radiation increased the risk of heatstroke, and exhaustion for thousands of visitors.
“Over 1,300 pilgrims died during the 2024 Hajj season”
The disparity in death tolls and temperature reports highlights the difficulty of coordinating real-time health data during massive global gatherings. These events underscore the increasing vulnerability of large-scale religious pilgrimages to extreme weather patterns, necessitating more robust cooling infrastructure and health protocols in Saudi Arabia.
